Study: Renewables save Americans billions » Yale Climate Connections
Renewables save Americans billions » Yale Climate Connections
"New research measures the value of clean air."
July 14, 2018 1:02 pm Update
Replaced both low beams in my truck, even though only had failed. That’s what the General suggested. Pulling the air box to get the passenger side was really easy. Not difficult on the driver side although pulling the accessory battery to get the driver side one was a bit heavy to lift. While I pulled the air box to get to the blown one on the passenger side I replaced the the air filter. The air filter was dirty as heck, I guess it’s been a few years since I’ve replaced that.
Technically it’s called a “combination” H11 bulb, even though it’s only a low beam, with one filament as it’s driven at a lower voltage during the daytime to serve as daytime running lights. Kind of a clever idea – under running a bulb can serve that secondary purpose of daytime running lights while avoiding having a whole second light bulb assembly.
War of the currents – Wikipedia
Being an ideological partisan, I want to state for the record that I think Edison was right and Westinghouse was wrong - direct current is more efficient and more useful at any particular voltage than alternating current. Direct current motors are more powerful. Direct current doesn't lose energy through impedence, only resistance. It's true AC alternators are more efficient and longer laster than DC generators, and that more power can be transmitted at higher voltages and lower amperage than. But you can easily convert AC to DC using a bridge rectifier with diodes and that buck regulators and boost converters can easily step up or down DC voltage for transmission and use. It's true that diodes and high speed switching transistors didn't exist in Edison's time but I suspect most electrical systems would be largely DC powered today. Probably a lot more solar and local fossil generation would be the norm today, had the grid not been previously built.